Acetylene-gas-generating lamp.



No. 629,948. Patented Aug. l, i899.

J. BILBIE &. H. DRIVET.

ACETYLENE EAS. GENERATWG LAMP.

(Appiicmon med ocr. 6, 169e.)

(No Model.)

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UNITED STATEs lPATENT OFFICE.

JOHN* BILBIE AND HENRI DRIVET, OF LONDON, ENGLAND.

ACETY LEN )E-GAS-G EN ERATING LAM P.

SPECIFICATION forming part of Letterslatent No. 629,948, dated August 1, 1899. Application filed October 6, 1898. `Serial NoiQS/ZB. (No model.)

To all", whom it may concern:

Beit known that' we, JOHN BILBIE, a sub-` ject of the Queen of GreatBritain, andHENR'I DRIVET, a citizen of France, both residingin the city of London, England, have invented certain, new and useful Improvements lin Acetylene Generators and Lamps,of ,which 4the following is a specification.

Our invention has for its object an acetylene generator or lamp in which the produc' Fig. 2 a horizontal section on line :ca: of Fig.v

l. In the latter View the lamp is supposed empty, while the burner, the reflector, and the vent-tap are left out for the sake of simplicity. Fig. 3 illustrates a modication.

Our improved generator or lamp consists, essentially, of a central inner cylinder or carbid-receptacle c, the two 'ends of which may be either screw-threaded or smooth, the up-` per end receiving a cap c, While the lower end is screwed or forced into the water-reservoir r, an india-rubber or other ring being interposed between this reservoir r and the lower end of a water-jacket h, surrounding the car bid-receptacle c, for the purpose of forming as tighta joint as possible. Another similar india-rubber ring il is interposed for packing purposes between the lower edge of the cap c and the upper end of the same jacket l). The latter is, moreover, provided with a side opening n., fitted with a tapped neck, wherein the cap c' is screwed. A short acetylene-gas supply pipe g is soldered to the inner side of the cylinder a, its upper end being open, while its lower end is bent over at right-angles and passes'through the cylinders a and h on its way to the burner o, a screw-threaded or other sleeve l being soldered to the tube g and to the outer side of the cylinder b to receive the tapped ring ofthe reliector R, which is of ordinary construction and to which we lay no claim whatsoever.

f The water-reservoir fr, which in the example illustrated hasa bulbousshape, may, how ever, assume any other shape, according to the use for which the lamp is intended, being,

4for instance, tubular when used for carriages and the like. This reservoir is,` as above stated,v screwed or telescoped over the lower end of the inner cylinder a and is provided at the top with a horizontal partition h, which is centrally perforated to allow for the passage ofthe upper end of the wick-tube e, the lower end of which is freely suspended in the said reservoir. A wick tu passes through this tube, and its lower end dips in the water ofthe reservoir r, while its upper end conveys Vthe moisture thus imbibed to the carbid of calcium in the receptacle Ct through the Wire gauze disk s, Fig.` 2, secured centrally in the bottom d of the same receptacle.

i is a vent-tap iXed, preferably, to the upper side of the reservoir r, while a central opening formed in the bottom of the latter is closed, for instance, by a screw-cap c2, bearing against a 'packiiigring i2.

In some cases we prefer to arrange the wiregauzeV disk eccentrically, in which case it is obvious that the tube e must be correspondingly eccentrical, as shown in Fig. 3.

By turning the reservoir r, say, from left to right, so that the tap shown on the left-hand side in the drawings be moved to the righthand side, the wick ceases to be in contact with the wire-gauze disk s, and hence with the carbid of calcium, this wick being thus merely withdrawn downwardly from such disk s in the example illustrated in the accompanying drawings, whereas it is withdrawn both downwardly and sidewise when the Wire-gauze disk and the Wick-tube e are arranged eccentrically. Water being poured through the opening n into the water-jacket and through the opening n into the reservoir fr, after having previously removed the respective caps c c2 this reservoir is screwed up tightly home, so that the upper end of the Wick w may convey its moisture to the calcium carbid placed at the bottom of the in-l ner receptacle a and cause acetylene 'gas to be evolved and to rise and escape through the burner o, whereat it isignited. Y

The tube gis preferably iilled with cottonwool, metal shavings, and the like.

The Water-jacket b serves to keep the carbid-receptacle a cool.

We claim- 1. In an acetylene-gas-generating lamp,tl1e combination of a carbid-receptacle, a gas-supply pipe leading from the carbid-receptacle, and a water receptacle, carrying a wick, rotatably' mounted on said carbid-receptacle and adapted to be adjusted to move the wick t0 and from a position where it will Contact with the carbid in said receptacle.

2. In an acetylene-gas-generating lamp,the combination of a carbid-receptacle, a diaphragm for supporting the carbid arranged above the lower end of said receptacle and having a perforated section, a gas-supply pipe leading from said receptacle, a water-recep- Tacle telescopically connected with the lower end of the carbid receptacle, and a Wick mounted in said Water-receptacle and adapted to be adjusted thereby to and from contact with the perforated section of said carbidsupporting diaphragm.

8. The herein-described acetylene-gasgenerating lamp, consisting of a carbid-receptacle, a gas-supply tube leading out from said receptacle, a water-jacket surrounding the carbid-receptacle, a water-receptacle rotatably mounted on the carbid-receptacle below the water-jacket, and a Wick carried by the Water-receptacle and adapted to be moved, by adjusting said receptacle7 into and out of contact with the carbid in the carbid-receptacle.

4. In au acetylene-gas-generating lamp,the combination of 'a carbid-receptacle, a diaphragm in said receptacle for supporting the carbid and having a perforated section, s, therein, a Water-receptacle, a wick extending into saidwater-receptacle and adapted to contact with the perforated section, s, of the carbid-support, and means for moving the wick laterally out of line with said perforated section s, and into line with the imperforate p0rtion of the carbid-support.

5. In an acetylene-gas-generating lamp,the combination of a carbid-receptacle having an external thread formed about its lower end, a diaphragm, for supporting the carbid in said rece tacle havingav erforate'dl section s a water-receptacle provided at its upper end with an internally-threaded socket adapted to receive and engage the threaded portion of the carbid-receptacle, and a wick carried by the water-receptacle and adapted to be adj usted, by movement of said receptacle relative to the carbid-receptacle, into and out of contact with the perforated section, s, of the carbid-support.

In witness whereof we have hereunto subscribed our names, at London, England, this 5th day of September, 1898, in presence of two witnesses,

J OHN BILBI'E. HENRI DRIVET.

Witnessesz" ALFRED NUTTING, FRED. G. LUNNoN. 

